16378656 has 48 divisors (see below), whose sum is σ = 49137984. Its totient is φ = 4679424.

The previous prime is 16378613. The next prime is 16378673. The reversal of 16378656 is 65687361.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11515 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (1023708).

Almost surely, 2^16378656 is an apocalyptic number.

16378656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16378656 is an abundant number, since it is smaller than the sum of its proper divisors (32759328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16378656 is a wasteful number, since it uses less digits than its factorization.

16378656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24393 (or 24385 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 16378656 is about 4047.0552257166. The cubic root of 16378656 is about 253.9565511479.

The spelling of 16378656 in words is "sixteen million, three hundred seventy-eight thousand, six hundred fifty-six".